Fountain pen



July i?, 1923.

V. GRTN ER FOUNTAIN PEN Fled- Oct m Dn om mA EG ww IT.

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` of .the 'retracting typ lAnother-object is to Paume Jut-11,1923.

UNITED lSTATES VICTOR GABTNEB, F

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`Applicatien nled 4tbetober Toallwhomztmayconeem:

Be it known that I, Vic'ron GARTNnR, a citizen ofthe United States, end resldent of Brooklyn, in thecounty of Kmgs and State of New York, have mvented certain new and useful Improvements in Fountain Pens, of which the following is a spec1fication.

My present invention relates to fountain pens and more particularly to fountam pens It is an object-,efr the invention to provide a pen of the-above type in whichl the sliding parts shall maintain a snugfit even after .prolonged use. w j; n prov1de a pen of the .above type in which the retracting mecha- .above type in nism shall take up little space and provide a reservoir for a considerable quantity of ink in a pen of small dimensions.

Another object is to provide apen of the take place dependably and without the need for shaking the pen to start the flow and which shall yet be substantially leakproof.

Another object is to provlde a stylographic en which shall be substantlally leakproof which shall feed mk reliably and which shall be durable in constructlon even under hard usage; 4 y c Other objects will be 1n part obvious and in part pointed out hereinafter.

It may here be noted that the usefulness of stylographic pens particularly 1n makmg carbons for which purpose the ordinary pen is not ideally adapted has long been. appreciated, but owing lar ly to the dlliculty either, on the one han of starting the mk flow, or, on the other hand, of preventing leakage, pens of this type have not heretofore had the wide field of application which would-be expected in the absence of these defects. According to one feature of my invention, I have provided a stylographic pen of the retracting type in which the stylus is thus submerged in ink when not 1n use, and, therefore, wet when the pen is projected for writing and in which a liberal passage is provided for flow to the ink feed section, so that no shaking of the pen 1s re uired to start or sustain the flow of ink.

ccording to other preferred features, the advancing element that carries the ink-feed section slides in snug engagement throughoutits length with the barrel, raffording an accurate guide, and dispensing4 with the which the feed of ink shall 4,1921. serial no. 595,317..

needA for the iwearing frictional engagement betweenvthe feed sectionjand the forward end of the casing.

According to another feature, the sliding element is hollow to provide an increased reservoir for ink. 1

In the accompanying drawings in which.

is shownone of various possible embodiments of .the several features of this inventlon, Fig. 1 is`a view in longitudinal cross-section of a pen in retracted position,

l-Fig. 2 is a side elevation partly in section with the casing removed,

Fi'g. 3 `is a sectional view of the ink-feed section disassembled, and;

,A Fig. 4 is a viewy in transverse cross-section taken along the line 4--4 of Fig. 1.

Similar reference characters referto similar parts throughout the several views of the drawings.4

Referring now to the drawings, I have shown a pen including a casing member 1 and a cap 2 enclosing the usual absorbent pad 36 and having a tapped portion 3 for coaction with corresponding threads 4 on the casing to close the forward or lower end A thereof. The rear or upper end of the casing is open and has threaded thereinto asat 5 a nipple 6 by which .is secured anextension 7 integral therewith and projecting beyond the openend of the casing, said extension constituting the support for the operating knob `8l of the .retracting mechanism. The operating knob is at the extreme end of the extension and is formed integral i with a shank 9 fitting snugly within the el:

tensionhand extending beyond the nipple as at 10 and havingr pinned thereto as at 11 the usual retracting barrel 12 spaced preff erably as at 13 from the inner Wall ofthe casing andprovided with a helical slot 14.

Within the barrel I provide a tube 15 having thin walls and a relatively large central bore, and a lug 16 secured to said tube near the rear end thereofextending through the helical slot 14 and projecting into a longitudinal groove 17 in the casing 1. The tube 15 has an enlarged forward or socket end 18 preferably flush with the outer 'surface of the barrel 12 and, therefore, also spaced from the inner wall of the casing. In the embodiment shown, a stylographic Afeed-section 19 is lnitted, into the socket 18.

The stylographic section is preferably formed of a generally cylindrical vulcanite Vstylus guard 25 at its forward end fand an axial passage 26 for .the stylus 27 connecting the cavity to the guard. A semi-cylindrical vulcanite element 28 is molded about the root of the stylus and fits into the cavity 24. The thread 22 is slit transversely as at 29 for intake' of air.

Adjacent the shoulder 30 formed at the junction between the socket portion\ 18 and the' main length of the tube 15 I provide relatively large` openings v31 and 32 .in the socket for the ready passage of ink lto the feed section. `At the open end the casing is provided with a ledge 33 for coaction with the forward end of the socket 18 when the stylus section is advanced for writing. The parts are so proportioned that .when the socket member comes into contact with the ledge 33 and'is arrested thereby, the lug 16 will still be spaced from the end 34 of the helical slot 14, thus preventing any strain upon the thin wall o the weaker points thereof and similarly4 when the shoulder 30 contacts the end of the barrel 12 as best seen in Fig. 1, with the pen in retracted position, the said shoulder will act as a guard to prevent contact between the lug 16 and the upper end 35 of the helical slot 14.

" The pen is filled in the manner commonly employed with retracting pens, through the culty in starting the iiow. Moreover, theVr onlyv through the length of the hollow tube forward end by the use of a dropper or the like. For use, the forward end being held uppermost, the knob 8 is rotated, causing a rotation of the barrel 13. The helical slot 14 rotates with 'the barrel 12 while lug 16 which extends` therethrough is held against rotation by the longitudinal roove 17, so that the lug will feed forward y, movin with it the tube 1,5, socket 18 and the vfee section 19, until the socket is arrested by the ledge 33, the feed section being'now advanced to its limit beyond the casing. .In this opera tion, it will be seen that the relatively large volume of the feed section 19 is advanced beyond the ink containin cavity, while the ,ink about theconical en 21 freely recedes vWithout spilling out of the' casing. The stylus having been submerged in the ink is wetwhen advanced, so that there is no difiiflowofvink is free, since the ink is fed not 15 but also laterally lthrough the openings 31 and 32. v Furthermore, the latter openings i function for feeding of. ink even when the supply in the reservoir is lowand does not fill the tube. It will be seen thatair enters through slit 29 to maintain atmospheric the. barrel at one of pressure' within the casing as the ink' iiows out.

It will be seen that the substantial length of tube 15 slidable within the enti-re length of the barrel 12 provides a 'particularly acdepend upon any tight frictional fit of the advanced.inkfeed section withinthe casing wall, so that wear is reduced toI a minimum at the forward end and leakagewill not occur-even after a long period of use. Where a solid rod is used instead of the hollow tube, it is apparent that the device is not only heavier but provides a materiallyl smaller lreservior for ink. `On the other hand, where a rod much smaller in diameter than the barrel is used, theaccuracy of alignment of the parts may be lost after a short period of use, -owing to the looseness which will develop. Although the invention has its preferred application tostylographic pens, as set forth, it will be understood that it is applicable to the conventional forms of fountain pens.

It will thus be seen that there is herein described apparatus in which the several features of this invention are embodied, and

which'apparatus in its action attains the various objects of the invention and is well suited to meet the requirements of practical use.

As many changes could be madev in the above construction and many a parently widely different embodiments of t is invention could be made without departingfrom the scope thereof, it is intended that all matter contained in the above description or shown inthe accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

1. In a retractable fountain pen, in combination, a casing, a barrel therein having a helical slot, 4a, feed section carrying member fitting in said barrel .and having a lug ex-- tending through said helical slot and into al vlongitudinal groove in said casing, said member having ay shoulder arrested by said vbarrel with said lug spaced from the end of the'helical slot when the feed section is in retracted position.

2. In a retractable fountain pen, in combination, a casing, a barrel therein, a tube slidably fitting in said barrel and having a lug extending through a helical slot in said barrel and into a longitudinal groove in said casing,.a socket at the forward end of Said tube, and a feed section fitting into said socket.

3. In a retractable fountain pen, in combination, a casing, a barrel thereln, a tube slidlso A ably fit-ting in said barrel and having a lug extendingthrough a helical slot in said barrel and into a longitudinal groove in said casing,y said tube having an enlarged socket at its forward end, an ink feed section itting in said socket, and a shoulder between Said socket and the main length of said tube to limitthe-retracting movementJ by contact with the end of the barrel, with the lug `spaced from the end of the helicalslot.

4. In a retractable fountain pen,V in combination, a casing, a barrel therein spaced from the wall of said casing, a tube slidably fitting in said barrel and having a socket portion integral therewith extending forwardly therebeyond and spaced from the wall of said casing, said tube havin a lug extending through a helical slot in said barrel and into a longitudinal groove in said casing, and a feed section carried in said socket for feed of ink to said section.

5. In a stylographic pen, in combination, a casing, a barrel therein, a member slidable .in said barrel and having a lug extending member having a socket at its forward end, a stylographic feed element threaded into i said socket, and shoulder means at the forward end of said casing to arrest said socket when the pen is projected for writing.

6. In a stylographic pen,'in combination, a cylindrical member having a threaded portion and a conical tip, a slit transverse of said threaded portion, a stylus member extending through a longitudinal bore in said member and projecting therebeyond, and a member in which the root of said stylus is embedded, said member fitting with clear.

anice in a bore in the base of said cylindrical member.

Signed at New York in the county of New York and State of New York this 1st day of October-A. D. 1921.

"-,vi'c'ion GARTNER. 

